@inproceedings{chen2020ref,
  title={Ref-NMS: Breaking Proposal Bottlenecks in Two-Stage Referring Expression Grounding},
  author={Chen, Long and Ma, Wenbo and Xiao, Jun and Zhang, Hanwang and Liu, Wei and Chang, Shih-Fu},
  booktitle={AAAI Conference on Artificial Intelligence},
  year={2021}
}